Sidi Drako Carbon SRS Vernice MTB shoes 2014 Soft Instep 3 closure system for microadjusted fit Techno-3 System dials with proprietary non-binding wire for custom fit Adjustable Heel Retention Device reinforces heel cup for better fit during high movement moments Sidi Heel Cup for added durability and stable footing MTB SRS Carbon Ground Sole for excellent power transfer that is durable and super lightweight